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35 terms

Anatomy Heart

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thoracic aorta, thoracic duct, esophagus
The heart lies anterior to
thymus
The heart lies posterior to
diaphragm
The heart lies superior to
aortic arch
The heart lies inferior to
epicardium
Outer surface of heart, coronary vessels
myocardium
"cardiac muscle", thickness is pressure related, effects autonomic nervous system
endocardium
Inner surface of heart, continuous with endothelium, cusps of valves
Pericardium
Container for heart
great vessels
Superior edge of pericardium
diaphragm
inferior edge of pericardium
pulmonary trunk, ascending aorta, atrial auricles, ventricles, atrio-ventricular sulcus, anterior inter-ventricular groove
Anterior surface of heart
superior vena cava, inferior vena cava, pulmonary veins, left atrium, atrio-ventricular sulcus
Posterior surface of heart
ventricles, inferior vena cava
Inferior surface of heart
superior vena cava, inferior vena cava, coronary sinus
Sources of blood for right atrium
tricuspid valve
Right atrium empties through
tricuspid valve
Source of blood for right ventricle
pulmonic valve
right ventricle empties into
3 cusps
Pulmonary valve anatomy
pulmonary veins
Left atrium source
mitral valve
Left atrium empties through
2 cusps
mitral valve anatomy
mitral valve
Source of blood for left ventricle
aortic valve
Left ventricle ejects into
3 cusps
Aortic valve anatomy
pacemaker
cardiac cells with fastest rate of spontaneous activity
propagation
cell to cell transmission
autonomic nervous input, hormonal input
Cardiac cells are influenced
increase rate, increase strength of contraction
Sympathetic nervous system effect on heart
wall of right atrium
sino atrial node location
sinus
sino atrial node rhythm
specialized cardiac muscle cells for transmissions
Purkinje cells
slow heart rate
Parasympathetic nervous system effect on heart
depolarization of Atriums
P wave
depolarization of ventricles
QRS wave
polarization of ventricles
T wave